What is the frequency? I remember that when I was in physics class, the teacher would often mention this word. The book is interpreted as the number of completions of periodic changes in unit time. The unit of measure describing the frequency of periodic movements is Hz. The higher the frequency, the more frequent the periodic movements.

       When we buy the notebook of Dell brand, we often see the unit of Hz in notebook memory configuration instructions. What do you know about this unit, the higher the frequency of the memory card is better?

       In fact, Dell's notebook memory card is not only updated as usual, but also distinguished by generations. According to the same generation of memory is also divided into different Hz level several grades. The price is not the same, the higher the frequency, the higher the price of the same generation of memory cards.

       This is because, theoretically, it is in the same capacity memory of the same generation. The higher the memory frequency, the faster the speed and the stronger processing power

       In other words, frequency is a very important factor in determining the memory performance of Dell laptops.

Now, with the continuous upgrading of notebook memory cards, the more the new generation of memory, the higher the frequency. And because of the improvement of the working voltage, the operating voltage is lower and the power consumption is still lower.

       So is it best to pick the latest, highest frequency laptop memory card? This is not, although such a strong performance memory cards, but can not be applied specifically have to see your laptop motherboard. For example, the Dell laptop you use is relatively old. Its motherboard only supports DDR4 2400. Then buy DDR4 3000 high-frequency memory can only identify DDR4 2400, so when you choose a memory card, it depends on the actual needs.